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	Natural Environment
	2019	2020	2021
Weather
Land
Ocean / Sea
Surface Waters / Wetlands
Land Mammals
Marine Mammals
Fish
Plants / Kelp
Birds
Insects
Invertebrates
Air
Atmosphere
Groundwater
Arachnids
Reptiles
Microbes
Fungi
Amphibians
	Unusual or Unexpected Event
	2019	2020	2021
Extreme Temperature
Ice / Snow Change
Unusual Range / Sighting
Death / Die-off / Decline
Extreme Precipitation
Flooding / Draining
Seasonal Timing
Landslide / Avalanche
Unusual Animal Behavior
Unusual Size / Abundance
Fire
Extreme Wind
Pathogen
Permafrost Change
Deformity / Disease / Injury
Pollution
Rain on Snow
Drought
Erosion
Algal Bloom
Infestation
Parasite
Glacier Change
Storm Surge
Thunderstorm
Cyclone / Hurricane
Eruption
Earthquake
Debris / Trash
Sinkhole / Crater
Sea/Land Level Change
Tsunami
Physical or Chemical Change
	Impact on Human Environment
	2019	2020	2021
Safety
Buildings
Human Health
Sports / Recreation
Transportation
Food Security
Economic Impact
Cultural Impact
Air Quality
Energy
Displacement
Fisheries
Pets
Water Security
Agriculture
Livestock
Sanitation
Forestry
Harvest Change
Aquaculture
Burial Site
Radiation
Relocation
Water Management